Emergency-lam



UNITED STATES PATENT OFFICE.

WILLIAM J. KOENIG, OF BROOKLYN, NEW YORK; ANNIE ALLEN ADMINISTRATRIX 0F SAID WILLIAM J. KOENIG, DECEASED.

EMEBGENCY-LAM.

Specification of Letters Patent.

Patented J one 2.2, [920.

Application flied December 3, 1918. Serial No. 265,126.

7 '0 all whom it may concern 7 Be it known that I, VVILL'IAM J. Kermit a. citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and Sta to of New York, have invented a new and Improved Emergency-Lamp, of which the fol lowing is a full, clear, and exact [lGSCIlIP tion.

This invention relates to portable or emergone 1 lamps such as are commonly used in or about machine shops, engine rooms, automobiles, or the like, for the purpose of inspecting, repairing, or pergorluin r othei duties in connection with such machines.

Among the objects of the invention is to provide an improved structure involving a lamp casing comprising not only a lamp socket and reflector, but also an electrome not serving to hold the lamp automaticall in any desired position as upon or agalnst any convenient metallic support.

Another object of the invention is to provide a lamp structure of the character set forth in which the magnet winding is in a branch or auxiliary circuit including a normally open switch so that while the lamp will glow automatically as soon as the cord plug is attached, the magnet will not he energized unless and until the lamp casing is put in supporting position against the aforesaid support at which time the magnet will be energized and automatically hold the lamp in position.

The details of construction upon which I rely to carry out the foregoing and other objects will be appreciated as this description progresses in connection with the ac compaiiying drawings of wh1ch- Figure 1 is a front elevation of my improved lamp in supported position, a portion of the base or magnet casing being broken away to show the automatic switch.

Fig. 2 is a. vertical section approximately 011 the line 2-2 of Fig. 1.

Fig. 3 is a. detail perspective view of the lamp socket.

Fi 4 is a vertical sectional. view of a modified form of lamp socket.

Fig. 5 is a detail plan view of a modified form of switch controlling the action of the electromagnet.

Fig. 6 is a vertical central section of the mechanism shown in Fig. 5.

Fig. 7 is a diagram of the electrical devices and indicating especially the relation of the lamp and clcctromaguet to the (llhl plug, and battery; and

a 'Fig. 8 is a detail view indicating the prc- .ierred manner of t'orminp the shell joints.

Referring now more particularly to the drawings I-show a lump casing comprising a plurality of shell members ll), 11 and :12 pertaining respectively to the electromagnetlc base, the socket and switch devices, and the lamp bulb hood or protecting rel-lee tor. The shell members it) and ll nre made preferably as hollow sheet metal ylinders ulmh may be connected inaction .-c;.:.;. *ul.la by any suitable means such as screw three-i or by means of screws 13 g'iussinu' then: through. shown best in F ori {her-e cylindrical shells may he made with meet my edges abutting directly against each other along a line 14 and locked in such po sition by means of a plurality of dumb-bell keys 1b. This type of connection is exceed ingly importantin the formation of shells of relatively thin or light material by forming the keys 15 of a slightly thicker mate rial and cut to exactly lit similarly shaped notches 15 in the shell, the keys being: put in place-and slightly swagcd r upsetJpi-o ducing an exceedingly strong and reliable ouit.

lVithin the base shell l() is lixed in any suitable manner on elcetroinagnet it; he vinir a core 16 and a. winding Ni base disk 17 of insulation surroun 'the lower end of the core just within the lower end of the shell 10. At t e upper end of the core is another disk 1 "f fiber or the like below which is arrarged a metallic disk 19 through which the terminals 20 and 21 of the winding 16 pass bv means of registering holes formed throl 11 these disks.

As above ltimated the shell 11 is desi ned as a hllder or protector for the meta lie lamp socket 22 an wiring switches and connections both for the lamp base 23 and the electromngnet. The socket 22 is provided with any usual or well known means such as bayonet slots for attachment of the lamp'base 23, and within the socket is arrangedl a contact piece comprising a slidable disk 24 having either one contact pin 25 as shown in Fig. 2 or two contact pins 25' for a double contact lamp base as shown in Fig. 4.

A suitable source of energy is indicated Hit lii

termediate connections with the wire 29.

'lhose intermediate connections in Fig. 2 are shown us eomprismg insulated wires 31 and 52- Lwisted' or otherwise fastened upon a pair of horns 33 formed es integrel parts of a. fiber eollur 3t carried by the socket 22. 'lhese horns allord u. convenientmeuns for making the wire connections. 'lhe disk 24 reelliently'supported through 0. spring u on 11 fixed disk 36 locked in any suitable minim-'2' within the lower portion of the socket 212. The disk 36 is provided with u ventral hole through which one end of the pin is guided for movement under the force oi the lamp base 23 when put into locking position.

It will thus be seen that while the lamp will always glow when the plug Wisconnected to a source of energy the circuit through the magnet 16 is not normally completed. To complete thiscircuit therefore and energize the magnet, I show in Fl 2 no automatic switch in the form of a pll nor pin 37 sliduble in or through a central bore in the core 16 and-having a head at its upper or inner end against which a. contin-t spring 38 constantly beers through 'a sleeve of insulation 39. This spring 38 is so lined to the disk 18 as to force the pin 37 normally downward to project the 0 mosite end thereof below the plane of the use end of the base 10. The'terminel 21 0f the nnlgnct winding is connected to the spring contort The free end of the contact '58 lies opposite some portion of the metallic socket 22, hence when the free end of the pin 37 is brought into direct content with any support to which the lump 1s intended to he fixed the pin will be moved unmedietely to cause the contact 38 to engage the socket 22 and thereby close the circuit through the magnet uutomaticully. will he understood by comparing Figs. 1 .md 2 It will thus be seen that no attention or effort is required on the pert of the opera tor to energize the magnet he simply munipulates the lump casing to place it where he wants it and when so placed the automatic switch pin 3'? will cause the closing; oi" the circuit and thereby the lump will he held in the place desired until he removes it later by simply withdrawing it from its This support. l-V hen so withdrawn .the spring 38 automatically leaves the point of contact with the socket"22 throwing thereby the pin 37 down for it subsequent contact. .The

action of the ma net is indo )endentof that of the lump on so while tielump is constantly burning when the plug 27 is in piece the magnet is not energized except when the operator desires to support thelzunp on or against uny metallic circuit in convenient reach. It will be understood that the power of the magnet is sullicient to hold the lnm'p in any position irrespective'of. uvity, vbut such power will not prevent t e operator from withdrawing the lump from its 'support when the operation is finished. The socket 22 is provided with a. air of spuced parallel pron 40 which straddle the switch spring 38 um which are adapted to interlock in any suitable manner "In or throu h the fiber disk 18 whereby the socket 2.2 is icld in proper position within the cats; ing 1.1 and with respect'to the electromagnet. l

The hood 12 is preferably made. of two parts -12 and'12" fa'st'enedto other at a, medium transverse joint 12". 'l he lower portionlQfis provided with u neckm'ember 121 constitutinge means of connection with the upper end of the shell 11 and alsoun internal bottom reflector insulated, however, from the socket 22 by menus of a sleeve =11 of fiber or the like. This form, of hood constitutes not only the best )osslble form of protector for thelump bulb, but also acts as a reflector serving to throw the light strongly out through a side window 42.

In Figs. 5 and 6 I Show a modified form of electronmgnet switch comprising a fiber arm l3 pivoted by means of u screw 4% or its equivalent, fitted into the upper end of the core bore 45. The provision of the bore for the accommodation of the pin 37 in the manufacture of these devices enables 7 either the manufacturer or uny other person to employ either type of switch with a.

minimum amount of trouble or expense.

The arm 43 carries a spring contact 38 adapted to cooperate with a fixed 46 associated with one of the windin rminels. This arm 43 obviously will progct laterally through the shell ll end so be in position to be operated by the operators lingers in order to energize the magnet.

I claim:

1. In an emergency lump, the combination of an electrornugnet, a disk of insulating material ut one end of the magnet through which the terminals of the nmguet windings pass, a movable contact member in connection with one of said terminals; a lump socket having at pair of supporting n'iembcrs straddling said switch and fixed to soil] disk, circuit wires leading to the magnet. and means projecting thunigh to tact the outside of the said movable switch 2. In an emergency of a casing, an electromagnet within the easa longitudina to rigidly suping including a core having *bore, a lamp socket, means lamp casing to actuate lamp, the

port. the lamp socket with respec combination t to the magnet, said supporting a pair of spaced prongs,

between said prongs and adapted to engage 10 the socket, circuit wires leading to the magnet and socket, and means movable through the core here to actuate said movable switch.

WM. J. KOENIG.

mean comprising a movable switch 

